<template>
    <view class="uni-date">
        <view class="uni-date-editor" @click="show">
            <slot>
                <view
                    class="uni-date-editor--x"
                    :class="{ 'uni-date-editor--x__disabled': disabled, 'uni-date-x--border': border }"
                >
                    <view v-if="!isRange" class="uni-date-x uni-date-single">
                        <uni-icons class="icon-calendar" type="calendar" color="#c0c4cc" size="22"></uni-icons>
                        <view class="uni-date__x-input">{{ displayValue || singlePlaceholderText }}</view>
                    </view>

                    <view v-else class="uni-date-x uni-date-range">
                        <uni-icons class="icon-calendar" type="calendar" color="#c0c4cc" size="22"></uni-icons>
                        <view class="uni-date__x-input text-center">{{
                            displayRangeValue.startDate || startPlaceholderText
                        }}</view>

                        <view class="range-separator">{{ rangeSeparator }}</view>

                        <view class="uni-date__x-input text-center">{{
                            displayRangeValue.endDate || endPlaceholderText
                        }}</view>
                    </view>

                    <view v-if="showClearIcon" class="uni-date__icon-clear" @click.stop="clear">
                        <uni-icons type="clear" color="#c0c4cc" size="22"></uni-icons>
                    </view>
                </view>
            </slot>
        </view>

        <view v-show="pickerVisible" class="uni-date-mask--pc" @click="close"></view>

        <view v-if="!isPhone" v-show="pickerVisible" ref="datePicker" class="uni-date-picker__container">
            <view v-if="!isRange" class="uni-date-single--x" :style="pickerPositionStyle">
                <view class="uni-popper__arrow"></view>

                <view v-if="hasTime" class="uni-date-changed popup-x-header">
                    <input
                        v-model="inputDate"
                        class="uni-date__input text-center"
                        type="text"
                        :placeholder="selectDateText"
                    />

                    <time-picker
                        v-model="pickerTime"
                        type="time"
                        :border="false"
                        :disabled="!inputDate"
                        :start="timepickerStartTime"
                        :end="timepickerEndTime"
                        :hide-second="hideSecond"
                        style="width: 100%"
                    >
                        <input
                            v-model="pickerTime"
                            class="uni-date__input text-center"
                            type="text"
                            :placeholder="selectTimeText"
                            :disabled="!inputDate"
                        />
                    </time-picker>
                </view>

                <Calendar
                    ref="pcSingle"
                    :show-month="false"
                    :start-date="calendarRange.startDate"
                    :end-date="calendarRange.endDate"
                    :date="calendarDate"
                    :default-value="defaultValue"
                    style="padding: 0 8px"
                    @change="singleChange"
                />

                <view v-if="hasTime" class="popup-x-footer">
                    <text class="confirm-text" @click="confirmSingleChange">{{ okText }}</text>
                </view>
            </view>

            <view v-else class="uni-date-range--x" :style="pickerPositionStyle">
                <view class="uni-popper__arrow"></view>
                <view v-if="hasTime" class="popup-x-header uni-date-changed">
                    <view class="popup-x-header--datetime">
                        <input
                            v-model="tempRange.startDate"
                            class="uni-date__input uni-date-range__input"
                            type="text"
                            :placeholder="startDateText"
                        />

                        <time-picker
                            v-model="tempRange.startTime"
                            type="time"
                            :start="timepickerStartTime"
                            :border="false"
                            :disabled="!tempRange.startDate"
                            :hide-second="hideSecond"
                        >
                            <input
                                v-model="tempRange.startTime"
                                class="uni-date__input uni-date-range__input"
                                type="text"
                                :placeholder="startTimeText"
                                :disabled="!tempRange.startDate"
                            />
                        </time-picker>
                    </view>

                    <uni-icons type="arrowthinright" color="#999" style="line-height: 40px"></uni-icons>

                    <view class="popup-x-header--datetime">
                        <input
                            v-model="tempRange.endDate"
                            class="uni-date__input uni-date-range__input"
                            type="text"
                            :placeholder="endDateText"
                        />

                        <time-picker
                            v-model="tempRange.endTime"
                            type="time"
                            :end="timepickerEndTime"
                            :border="false"
                            :disabled="!tempRange.endDate"
                            :hide-second="hideSecond"
                        >
                            <input
                                v-model="tempRange.endTime"
                                class="uni-date__input uni-date-range__input"
                                type="text"
                                :placeholder="endTimeText"
                                :disabled="!tempRange.endDate"
                            />
                        </time-picker>
                    </view>
                </view>

                <view class="popup-x-body">
                    <Calendar
                        ref="left"
                        :show-month="false"
                        :start-date="calendarRange.startDate"
                        :end-date="calendarRange.endDate"
                        :range="true"
                        :ple-status="endMultipleStatus"
                        style="padding: 0 8px"
                        @change="leftChange"
                        @first-enter-cale="updateRightCale"
                    />
                    <Calendar
                        ref="right"
                        :show-month="false"
                        :start-date="calendarRange.startDate"
                        :end-date="calendarRange.endDate"
                        :range="true"
                        :ple-status="startMultipleStatus"
                        style="padding: 0 8px; border-left: 1px solid #f1f1f1"
                        @change="rightChange"
                        @first-enter-cale="updateLeftCale"
                    />
                </view>

                <view v-if="hasTime" class="popup-x-footer">
                    <text @click="clear">{{ clearText }}</text>
                    <text class="confirm-text" @click="confirmRangeChange">{{ okText }}</text>
                </view>
            </view>
        </view>

        <Calendar
            v-if="isPhone"
            ref="mobile"
            :clear-date="false"
            :date="calendarDate"
            :def-time="mobileCalendarTime"
            :start-date="calendarRange.startDate"
            :end-date="calendarRange.endDate"
            :selectable-times="mobSelectableTime"
            :start-placeholder="startPlaceholder"
            :end-placeholder="endPlaceholder"
            :default-value="defaultValue"
            :ple-status="endMultipleStatus"
            :show-month="false"
            :range="isRange"
            :has-time="hasTime"
            :insert="false"
            :hide-second="hideSecond"
            @confirm="mobileChange"
            @mask-close="close"
            @change="calendarClick"
        />
    </view>
</template>
<script>
/**
 * DatetimePicker 时间选择器
 * @description 同时支持 PC 和移动端使用日历选择日期和日期范围
 * @tutorial https://ext.dcloud.net.cn/plugin?id=3962
 * @property {String} type 选择器类型
 * @property {String|Number|Array|Date} value 绑定值
 * @property {String} placeholder 单选择时的占位内容
 * @property {String} start 起始时间
 * @property {String} end 终止时间
 * @property {String} start-placeholder 范围选择时开始日期的占位内容
 * @property {String} end-placeholder 范围选择时结束日期的占位内容
 * @property {String} range-separator 选择范围时的分隔符
 * @property {Boolean} border = [true|false] 是否有边框
 * @property {Boolean} disabled = [true|false] 是否禁用
 * @property {Boolean} clearIcon = [true|false] 是否显示清除按钮（仅PC端适用）
 * @property {[String} defaultValue 选择器打开时默认显示的时间
 * @event {Function} change 确定日期时触发的事件
 * @event {Function} maskClick 点击遮罩层触发的事件
 * @event {Function} show 打开弹出层
 * @event {Function} close 关闭弹出层
 * @event {Function} clear 清除上次选中的状态和值
 **/
import Calendar from "./calendar.vue";
import TimePicker from "./time-picker.vue";
import { initVueI18n } from "@dcloudio/uni-i18n";
import i18nMessages from "./i18n/index.js";
import { getDateTime, getDate, getTime, getDefaultSecond, dateCompare, checkDate, fixIosDateFormat } from "./util";

export default {
    name: "UniDatetimePicker",

    options: {
        // #ifdef MP-TOUTIAO
        virtualHost: false,
        // #endif
        // #ifndef MP-TOUTIAO
        virtualHost: true
        // #endif
    },
    components: {
        Calendar,
        TimePicker
    },
    props: {
        type: {
            type: String,
            default: "datetime"
        },
        value: {
            type: [String, Number, Array, Date],
            default: ""
        },
        modelValue: {
            type: [String, Number, Array, Date],
            default: ""
        },
        start: {
            type: [Number, String],
            default: ""
        },
        end: {
            type: [Number, String],
            default: ""
        },
        returnType: {
            type: String,
            default: "string"
        },
        placeholder: {
            type: String,
            default: ""
        },
        startPlaceholder: {
            type: String,
            default: ""
        },
        endPlaceholder: {
            type: String,
            default: ""
        },
        rangeSeparator: {
            type: String,
            default: "-"
        },
        border: {
            type: [Boolean],
            default: true
        },
        disabled: {
            type: [Boolean],
            default: false
        },
        clearIcon: {
            type: [Boolean],
            default: true
        },
        hideSecond: {
            type: [Boolean],
            default: false
        },
        defaultValue: {
            type: [String, Object, Array],
            default: ""
        }
    },
    data() {
        return {
            isRange: false,
            hasTime: false,
            displayValue: "",
            inputDate: "",
            calendarDate: "",
            pickerTime: "",
            calendarRange: {
                startDate: "",
                startTime: "",
                endDate: "",
                endTime: ""
            },
            displayRangeValue: {
                startDate: "",
                endDate: ""
            },
            tempRange: {
                startDate: "",
                startTime: "",
                endDate: "",
                endTime: ""
            },
            // 左右日历同步数据
            startMultipleStatus: {
                before: "",
                after: "",
                data: [],
                fulldate: ""
            },
            endMultipleStatus: {
                before: "",
                after: "",
                data: [],
                fulldate: ""
            },
            pickerVisible: false,
            pickerPositionStyle: null,
            isEmitValue: false,
            isPhone: false,
            isFirstShow: true,
            i18nT: () => {}
        };
    },
    computed: {
        timepickerStartTime() {
            const activeDate = this.isRange ? this.tempRange.startDate : this.inputDate;
            return activeDate === this.calendarRange.startDate ? this.calendarRange.startTime : "";
        },
        timepickerEndTime() {
            const activeDate = this.isRange ? this.tempRange.endDate : this.inputDate;
            return activeDate === this.calendarRange.endDate ? this.calendarRange.endTime : "";
        },
        mobileCalendarTime() {
            const timeRange = {
                start: this.tempRange.startTime,
                end: this.tempRange.endTime
            };
            return this.isRange ? timeRange : this.pickerTime;
        },
        mobSelectableTime() {
            return {
                start: this.calendarRange.startTime,
                end: this.calendarRange.endTime
            };
        },
        datePopupWidth() {
            // todo
            return this.isRange ? 653 : 301;
        },

        /**
         * for i18n
         */
        singlePlaceholderText() {
            return this.placeholder || (this.type === "date" ? this.selectDateText : this.selectDateTimeText);
        },
        startPlaceholderText() {
            return this.startPlaceholder || this.startDateText;
        },
        endPlaceholderText() {
            return this.endPlaceholder || this.endDateText;
        },
        selectDateText() {
            return this.i18nT("uni-datetime-picker.selectDate");
        },
        selectDateTimeText() {
            return this.i18nT("uni-datetime-picker.selectDateTime");
        },
        selectTimeText() {
            return this.i18nT("uni-datetime-picker.selectTime");
        },
        startDateText() {
            return this.startPlaceholder || this.i18nT("uni-datetime-picker.startDate");
        },
        startTimeText() {
            return this.i18nT("uni-datetime-picker.startTime");
        },
        endDateText() {
            return this.endPlaceholder || this.i18nT("uni-datetime-picker.endDate");
        },
        endTimeText() {
            return this.i18nT("uni-datetime-picker.endTime");
        },
        okText() {
            return this.i18nT("uni-datetime-picker.ok");
        },
        clearText() {
            return this.i18nT("uni-datetime-picker.clear");
        },
        showClearIcon() {
            return (
                this.clearIcon &&
                !this.disabled &&
                (this.displayValue || (this.displayRangeValue.startDate && this.displayRangeValue.endDate))
            );
        }
    },
    watch: {
        type: {
            immediate: true,
            handler(newVal) {
                this.hasTime = newVal.indexOf("time") !== -1;
                this.isRange = newVal.indexOf("range") !== -1;
            }
        },
        // #ifndef VUE3
        value: {
            immediate: true,
            handler(newVal) {
                if (this.isEmitValue) {
                    this.isEmitValue = false;
                    return;
                }
                this.initPicker(newVal);
            }
        },
        // #endif
        // #ifdef VUE3
        modelValue: {
            immediate: true,
            handler(newVal) {
                if (this.isEmitValue) {
                    this.isEmitValue = false;
                    return;
                }
                this.initPicker(newVal);
            }
        },
        // #endif
        start: {
            immediate: true,
            handler(newVal) {
                if (!newVal) return;
                this.calendarRange.startDate = getDate(newVal);
                if (this.hasTime) {
                    this.calendarRange.startTime = getTime(newVal);
                }
            }
        },
        end: {
            immediate: true,
            handler(newVal) {
                if (!newVal) return;
                this.calendarRange.endDate = getDate(newVal);
                if (this.hasTime) {
                    this.calendarRange.endTime = getTime(newVal, this.hideSecond);
                }
            }
        }
    },
    created() {
        this.initI18nT();
        this.platform();
    },
    methods: {
        initI18nT() {
            const vueI18n = initVueI18n(i18nMessages);
            this.i18nT = vueI18n.t;
        },
        initPicker(newVal) {
            if ((!newVal && !this.defaultValue) || (Array.isArray(newVal) && !newVal.length)) {
                this.$nextTick(() => {
                    this.clear(false);
                });
                return;
            }

            if (!Array.isArray(newVal) && !this.isRange) {
                if (newVal) {
                    this.displayValue = this.inputDate = this.calendarDate = getDate(newVal);
                    if (this.hasTime) {
                        this.pickerTime = getTime(newVal, this.hideSecond);
                        this.displayValue = `${this.displayValue} ${this.pickerTime}`;
                    }
                } else if (this.defaultValue) {
                    this.inputDate = this.calendarDate = getDate(this.defaultValue);
                    if (this.hasTime) {
                        this.pickerTime = getTime(this.defaultValue, this.hideSecond);
                    }
                }
            } else {
                const [before, after] = newVal;
                if (!before && !after) return;
                const beforeDate = getDate(before);
                const beforeTime = getTime(before, this.hideSecond);

                const afterDate = getDate(after);
                const afterTime = getTime(after, this.hideSecond);
                const startDate = beforeDate;
                const endDate = afterDate;
                this.displayRangeValue.startDate = this.tempRange.startDate = startDate;
                this.displayRangeValue.endDate = this.tempRange.endDate = endDate;

                if (this.hasTime) {
                    this.displayRangeValue.startDate = `${beforeDate} ${beforeTime}`;
                    this.displayRangeValue.endDate = `${afterDate} ${afterTime}`;
                    this.tempRange.startTime = beforeTime;
                    this.tempRange.endTime = afterTime;
                }
                const defaultRange = {
                    before: beforeDate,
                    after: afterDate
                };
                this.startMultipleStatus = Object.assign({}, this.startMultipleStatus, defaultRange, {
                    which: "right"
                });
                this.endMultipleStatus = Object.assign({}, this.endMultipleStatus, defaultRange, {
                    which: "left"
                });
            }
        },
        updateLeftCale(e) {
            const left = this.$refs.left;
            // 设置范围选
            left.cale.setHoverMultiple(e.after);
            left.setDate(this.$refs.left.nowDate.fullDate);
        },
        updateRightCale(e) {
            const right = this.$refs.right;
            // 设置范围选
            right.cale.setHoverMultiple(e.after);
            right.setDate(this.$refs.right.nowDate.fullDate);
        },
        platform() {
            if (typeof navigator !== "undefined") {
                this.isPhone = navigator.userAgent.toLowerCase().indexOf("mobile") !== -1;
                return;
            }
            // #ifdef MP-WEIXIN
            const { windowWidth } = uni.getWindowInfo();
            // #endif
            // #ifndef MP-WEIXIN
            const { windowWidth } = uni.getSystemInfoSync();
            // #endif
            this.isPhone = windowWidth <= 500;
            this.windowWidth = windowWidth;
        },
        show() {
            this.$emit("show");
            if (this.disabled) {
                return;
            }
            this.platform();
            if (this.isPhone) {
                setTimeout(() => {
                    this.$refs.mobile.open();
                }, 0);
                return;
            }
            this.pickerPositionStyle = {
                top: "10px"
            };
            const dateEditor = uni.createSelectorQuery().in(this).select(".uni-date-editor");
            dateEditor
                .boundingClientRect((rect) => {
                    if (this.windowWidth - rect.left < this.datePopupWidth) {
                        this.pickerPositionStyle.right = 0;
                    }
                })
                .exec();
            setTimeout(() => {
                this.pickerVisible = !this.pickerVisible;
                if (!this.isPhone && this.isRange && this.isFirstShow) {
                    this.isFirstShow = false;
                    const { startDate, endDate } = this.calendarRange;
                    if (startDate && endDate) {
                        if (this.diffDate(startDate, endDate) < 30) {
                            this.$refs.right.changeMonth("pre");
                        }
                    } else {
                        // this.$refs.right.changeMonth('next')
                        if (this.isPhone) {
                            this.$refs.right.cale.lastHover = false;
                        }
                    }
                }
            }, 50);
        },
        close() {
            setTimeout(() => {
                this.pickerVisible = false;
                this.$emit("maskClick", this.value);
                this.$refs.mobile && this.$refs.mobile.close();
            }, 20);
        },
        setEmit(value) {
            if (this.returnType === "timestamp" || this.returnType === "date") {
                if (!Array.isArray(value)) {
                    if (!this.hasTime) {
                        value = value + " " + "00:00:00";
                    }
                    value = this.createTimestamp(value);
                    if (this.returnType === "date") {
                        value = new Date(value);
                    }
                } else {
                    if (!this.hasTime) {
                        value[0] = value[0] + " " + "00:00:00";
                        value[1] = value[1] + " " + "00:00:00";
                    }
                    value[0] = this.createTimestamp(value[0]);
                    value[1] = this.createTimestamp(value[1]);
                    if (this.returnType === "date") {
                        value[0] = new Date(value[0]);
                        value[1] = new Date(value[1]);
                    }
                }
            }

            this.$emit("update:modelValue", value);
            this.$emit("input", value);
            this.$emit("change", value);
            this.isEmitValue = true;
        },
        createTimestamp(date) {
            date = fixIosDateFormat(date);
            return Date.parse(new Date(date));
        },
        singleChange(e) {
            this.calendarDate = this.inputDate = e.fulldate;
            if (this.hasTime) return;
            this.confirmSingleChange();
        },
        confirmSingleChange() {
            if (!checkDate(this.inputDate)) {
                const now = new Date();
                this.calendarDate = this.inputDate = getDate(now);
                this.pickerTime = getTime(now, this.hideSecond);
            }

            let startLaterInputDate = false;
            let startDate, startTime;
            if (this.start) {
                let startString = this.start;
                if (typeof this.start === "number") {
                    startString = getDateTime(this.start, this.hideSecond);
                }
                [startDate, startTime] = startString.split(" ");
                if (this.start && !dateCompare(startDate, this.inputDate)) {
                    startLaterInputDate = true;
                    this.inputDate = startDate;
                }
            }

            let endEarlierInputDate = false;
            let endDate, endTime;
            if (this.end) {
                let endString = this.end;
                if (typeof this.end === "number") {
                    endString = getDateTime(this.end, this.hideSecond);
                }
                [endDate, endTime] = endString.split(" ");
                if (this.end && !dateCompare(this.inputDate, endDate)) {
                    endEarlierInputDate = true;
                    this.inputDate = endDate;
                }
            }
            if (this.hasTime) {
                if (startLaterInputDate) {
                    this.pickerTime = startTime || getDefaultSecond(this.hideSecond);
                }
                if (endEarlierInputDate) {
                    this.pickerTime = endTime || getDefaultSecond(this.hideSecond);
                }
                if (!this.pickerTime) {
                    this.pickerTime = getTime(Date.now(), this.hideSecond);
                }
                this.displayValue = `${this.inputDate} ${this.pickerTime}`;
            } else {
                this.displayValue = this.inputDate;
            }
            this.setEmit(this.displayValue);
            this.pickerVisible = false;
        },
        leftChange(e) {
            const { before, after } = e.range;
            this.rangeChange(before, after);
            const obj = {
                before: e.range.before,
                after: e.range.after,
                data: e.range.data,
                fulldate: e.fulldate
            };
            this.startMultipleStatus = Object.assign({}, this.startMultipleStatus, obj);
            this.$emit("calendarClick", e);
        },
        rightChange(e) {
            const { before, after } = e.range;
            this.rangeChange(before, after);
            const obj = {
                before: e.range.before,
                after: e.range.after,
                data: e.range.data,
                fulldate: e.fulldate
            };
            this.endMultipleStatus = Object.assign({}, this.endMultipleStatus, obj);
            this.$emit("calendarClick", e);
        },
        mobileChange(e) {
            if (this.isRange) {
                const { before, after } = e.range;
                if (!before) {
                    return;
                }

                this.handleStartAndEnd(before, after, true);
                if (this.hasTime) {
                    const { startTime, endTime } = e.timeRange;
                    this.tempRange.startTime = startTime;
                    this.tempRange.endTime = endTime;
                }
                this.confirmRangeChange();
            } else {
                if (this.hasTime) {
                    this.displayValue = e.fulldate + " " + e.time;
                } else {
                    this.displayValue = e.fulldate;
                }
                this.setEmit(this.displayValue);
            }
            this.$refs.mobile.close();
        },
        rangeChange(before, after) {
            if (!(before && after)) return;
            this.handleStartAndEnd(before, after, true);
            if (this.hasTime) return;
            this.confirmRangeChange();
        },
        confirmRangeChange() {
            if (!this.tempRange.startDate || !this.tempRange.endDate) {
                this.pickerVisible = false;
                return;
            }
            if (!checkDate(this.tempRange.startDate)) {
                this.tempRange.startDate = getDate(Date.now());
            }
            if (!checkDate(this.tempRange.endDate)) {
                this.tempRange.endDate = getDate(Date.now());
            }

            let start, end;

            let startDateLaterRangeStartDate = false;
            let startDateLaterRangeEndDate = false;
            let startDate, startTime;
            if (this.start) {
                let startString = this.start;
                if (typeof this.start === "number") {
                    startString = getDateTime(this.start, this.hideSecond);
                }
                [startDate, startTime] = startString.split(" ");
                if (this.start && !dateCompare(this.start, `${this.tempRange.startDate} ${this.tempRange.startTime}`)) {
                    startDateLaterRangeStartDate = true;
                    this.tempRange.startDate = startDate;
                }
                if (this.start && !dateCompare(this.start, `${this.tempRange.endDate} ${this.tempRange.endTime}`)) {
                    startDateLaterRangeEndDate = true;
                    this.tempRange.endDate = startDate;
                }
            }
            let endDateEarlierRangeStartDate = false;
            let endDateEarlierRangeEndDate = false;
            let endDate, endTime;
            if (this.end) {
                let endString = this.end;
                if (typeof this.end === "number") {
                    endString = getDateTime(this.end, this.hideSecond);
                }
                [endDate, endTime] = endString.split(" ");

                if (this.end && !dateCompare(`${this.tempRange.startDate} ${this.tempRange.startTime}`, this.end)) {
                    endDateEarlierRangeStartDate = true;
                    this.tempRange.startDate = endDate;
                }
                if (this.end && !dateCompare(`${this.tempRange.endDate} ${this.tempRange.endTime}`, this.end)) {
                    endDateEarlierRangeEndDate = true;
                    this.tempRange.endDate = endDate;
                }
            }
            if (!this.hasTime) {
                start = this.displayRangeValue.startDate = this.tempRange.startDate;
                end = this.displayRangeValue.endDate = this.tempRange.endDate;
            } else {
                if (startDateLaterRangeStartDate) {
                    this.tempRange.startTime = startTime || getDefaultSecond(this.hideSecond);
                } else if (endDateEarlierRangeStartDate) {
                    this.tempRange.startTime = endTime || getDefaultSecond(this.hideSecond);
                }
                if (!this.tempRange.startTime) {
                    this.tempRange.startTime = getTime(Date.now(), this.hideSecond);
                }

                if (startDateLaterRangeEndDate) {
                    this.tempRange.endTime = startTime || getDefaultSecond(this.hideSecond);
                } else if (endDateEarlierRangeEndDate) {
                    this.tempRange.endTime = endTime || getDefaultSecond(this.hideSecond);
                }
                if (!this.tempRange.endTime) {
                    this.tempRange.endTime = getTime(Date.now(), this.hideSecond);
                }
                start = this.displayRangeValue.startDate = `${this.tempRange.startDate} ${this.tempRange.startTime}`;
                end = this.displayRangeValue.endDate = `${this.tempRange.endDate} ${this.tempRange.endTime}`;
            }
            if (!dateCompare(start, end)) {
                [start, end] = [end, start];
            }
            this.displayRangeValue.startDate = start;
            this.displayRangeValue.endDate = end;
            const displayRange = [start, end];
            this.setEmit(displayRange);
            this.pickerVisible = false;
        },
        handleStartAndEnd(before, after, temp = false) {
            if (!before) return;
            if (!after) after = before;
            const type = temp ? "tempRange" : "range";
            const isStartEarlierEnd = dateCompare(before, after);
            this[type].startDate = isStartEarlierEnd ? before : after;
            this[type].endDate = isStartEarlierEnd ? after : before;
        },
        /**
         * 比较时间大小
         */
        dateCompare(startDate, endDate) {
            // 计算截止时间
            startDate = new Date(startDate.replace("-", "/").replace("-", "/"));
            // 计算详细项的截止时间
            endDate = new Date(endDate.replace("-", "/").replace("-", "/"));
            return startDate <= endDate;
        },

        /**
         * 比较时间差
         */
        diffDate(startDate, endDate) {
            // 计算截止时间
            startDate = new Date(startDate.replace("-", "/").replace("-", "/"));
            // 计算详细项的截止时间
            endDate = new Date(endDate.replace("-", "/").replace("-", "/"));
            const diff = (endDate - startDate) / (24 * 60 * 60 * 1000);
            return Math.abs(diff);
        },

        clear(needEmit = true) {
            if (!this.isRange) {
                this.displayValue = "";
                this.inputDate = "";
                this.pickerTime = "";
                if (this.isPhone) {
                    this.$refs.mobile && this.$refs.mobile.clearCalender();
                } else {
                    this.$refs.pcSingle && this.$refs.pcSingle.clearCalender();
                }
                if (needEmit) {
                    this.$emit("change", "");
                    this.$emit("input", "");
                    this.$emit("update:modelValue", "");
                }
            } else {
                this.displayRangeValue.startDate = "";
                this.displayRangeValue.endDate = "";
                this.tempRange.startDate = "";
                this.tempRange.startTime = "";
                this.tempRange.endDate = "";
                this.tempRange.endTime = "";
                if (this.isPhone) {
                    this.$refs.mobile && this.$refs.mobile.clearCalender();
                } else {
                    this.$refs.left && this.$refs.left.clearCalender();
                    this.$refs.right && this.$refs.right.clearCalender();
                    this.$refs.right && this.$refs.right.changeMonth("next");
                }
                if (needEmit) {
                    this.$emit("change", []);
                    this.$emit("input", []);
                    this.$emit("update:modelValue", []);
                }
            }
        },

        calendarClick(e) {
            this.$emit("calendarClick", e);
        }
    }
};
</script>

<style lang="scss">
$uni-primary: #007aff !default;

.uni-date {
    width: 100%;
    flex: 1;
}

.uni-date-x {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    background-color: #fff;
    color: #666;
    font-size: 14px;
    flex: 1;

    .icon-calendar {
        padding-left: 3px;
    }

    .range-separator {
        height: 35px;
        /* #ifndef MP */
        padding: 0 2px;
        /* #endif */
        line-height: 35px;
    }
}

.uni-date-x--border {
    box-sizing: border-box;
    border-radius: 4px;
    border: 1px solid #e5e5e5;
}

.uni-date-editor--x {
    display: flex;
    align-items: center;
    position: relative;
}

.uni-date-editor--x .uni-date__icon-clear {
    padding-right: 3px;
    display: flex;
    align-items: center;
    /* #ifdef H5 */
    cursor: pointer;
    /* #endif */
}

.uni-date__x-input {
    width: auto;
    height: 35px;
    /* #ifndef MP */
    padding-left: 5px;
    /* #endif */
    position: relative;
    flex: 1;
    line-height: 35px;
    font-size: 14px;
    overflow: hidden;
}

.text-center {
    text-align: center;
}

.uni-date__input {
    height: 40px;
    width: 100%;
    line-height: 40px;
    font-size: 14px;
}

.uni-date-range__input {
    text-align: center;
    max-width: 142px;
}

.uni-date-picker__container {
    position: relative;
}

.uni-date-mask--pc {
    position: fixed;
    bottom: 0px;
    top: 0px;
    left: 0px;
    right: 0px;
    background-color: rgba(0, 0, 0, 0);
    transition-duration: 0.3s;
    z-index: 996;
}

.uni-date-single--x {
    background-color: #fff;
    position: absolute;
    top: 0;
    z-index: 999;
    border: 1px solid #ebeef5;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

.uni-date-range--x {
    background-color: #fff;
    position: absolute;
    top: 0;
    z-index: 999;
    border: 1px solid #ebeef5;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

.uni-date-editor--x__disabled {
    opacity: 0.4;
    cursor: default;
}

.uni-date-editor--logo {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

/* 添加时间 */
.popup-x-header {
    /* #ifndef APP-NVUE */
    display: flex;
    /* #endif */
    flex-direction: row;
}

.popup-x-header--datetime {
    /* #ifndef APP-NVUE */
    display: flex;
    /* #endif */
    flex-direction: row;
    flex: 1;
}

.popup-x-body {
    display: flex;
}

.popup-x-footer {
    padding: 0 15px;
    border-top-color: #f1f1f1;
    border-top-style: solid;
    border-top-width: 1px;
    line-height: 40px;
    text-align: right;
    color: #666;
}

.popup-x-footer text:hover {
    color: $uni-primary;
    cursor: pointer;
    opacity: 0.8;
}

.popup-x-footer .confirm-text {
    margin-left: 20px;
    color: $uni-primary;
}

.uni-date-changed {
    text-align: center;
    color: #333;
    border-bottom-color: #f1f1f1;
    border-bottom-style: solid;
    border-bottom-width: 1px;
}

.uni-date-changed--time text {
    height: 50px;
    line-height: 50px;
}

.uni-date-changed .uni-date-changed--time {
    flex: 1;
}

.uni-date-changed--time-date {
    color: #333;
    opacity: 0.6;
}

.mr-50 {
    margin-right: 50px;
}

/* picker 弹出层通用的指示小三角, todo：扩展至上下左右方向定位 */
.uni-popper__arrow,
.uni-popper__arrow::after {
    position: absolute;
    display: block;
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-top-width: 0;
}

.uni-popper__arrow {
    filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.03));
    top: -6px;
    left: 10%;
    margin-right: 3px;
    border-bottom-color: #ebeef5;
}

.uni-popper__arrow::after {
    content: " ";
    top: 1px;
    margin-left: -6px;
    border-bottom-color: #fff;
}
</style>
